Award Date

1-1-2003

Degree Type

Thesis

Degree Name

Master of Science (MS)

Department

Environmental Science

First Committee Member

Krystyna Stave

Number of Pages

108

Abstract

After intensive efforts in the 1970s to stabilize the water level in Devil's Hole, the population of the Devil's Hole Pupfish showed slight but steady increase from the 1970s until the mid-1990s when the population began a steady deCline In this study I developed a system dynamics model to help the Devil's Hole Pupfish Recovery Team understand the recent decline and identify and test potential management strategies and policies to reverse or stop the deCline The model and modeling process was used to identify critical gaps in existing data. Tests simulating pore space manipulation, algae removal and addition of refugia fish resulted in long-term population growth but not quick, short-term changes.

Keywords

California; Cyprinodon; Decisions; Decline; Devil; Diabolis; Habitat; Hole; Management; Model; Population; Pupfish; Support; Understand

Controlled Subject

Environmental sciences; Aquatic sciences; Ecology

File Format

pdf

File Size

2488.32 KB

Degree Grantor

University of Nevada, Las Vegas

Language

English

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